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SE9803963L - Procedure for producing upgraded newsprint pulp to SC / LWC quality - Google Patents

Procedure for producing upgraded newsprint pulp to SC / LWC quality

Info

Publication number
SE9803963L
SE9803963L SE9803963A SE9803963A SE9803963L SE 9803963 L SE9803963 L SE 9803963L SE 9803963 A SE9803963 A SE 9803963A SE 9803963 A SE9803963 A SE 9803963A SE 9803963 L SE9803963 L SE 9803963L
Authority
SE
Sweden
Prior art keywords
pulp
consistency
procedure
newsprint pulp
producing upgraded
Prior art date
Application number
SE9803963A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE513140C2 (en
SE9803963D0 (en
Inventor
Ove Danielsson
Bo Falk
Ulf Karlsson
Kenneth Kjellstroem
Original Assignee
Valmet Fibertech Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valmet Fibertech Ab filed Critical Valmet Fibertech Ab
Priority to SE9803963A priority Critical patent/SE513140C2/en
Publication of SE9803963D0 publication Critical patent/SE9803963D0/en
Priority to US09/856,134 priority patent/US6361650B1/en
Priority to NZ511810A priority patent/NZ511810A/en
Priority to AU19033/00A priority patent/AU758521B2/en
Priority to AT99962627T priority patent/ATE288515T1/en
Priority to EP99962627A priority patent/EP1159481B1/en
Priority to BRPI9915497-8A priority patent/BR9915497B1/en
Priority to JP2000584135A priority patent/JP2002530546A/en
Priority to DE69923603T priority patent/DE69923603T2/en
Priority to PCT/SE1999/002128 priority patent/WO2000031335A1/en
Priority to CA002350988A priority patent/CA2350988C/en
Publication of SE9803963L publication Critical patent/SE9803963L/en
Publication of SE513140C2 publication Critical patent/SE513140C2/en
Priority to NO20012468A priority patent/NO315429B1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Electrotherapy Devices (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Processes are disclosed for processing low consistency newsprint pulp including refining the pulp in a first refiner to a consistency of greater than 2%, screening the processed pulp with a slotted screen basket with a slot width of from 0.05 to 0.15 mm, with the withdrawal of the primary reject portion being greater than 50%, withdrawing the accept portion for further processing, dewatering the reject portion to provide a high consistency pulp, refining the high consistency pulp in a second refiner, screening the processed high width consistency pulp with a slotted screen basket having a slot of less than 0.15 mm, and combining the two accept portions for the further processing steps.
SE9803963A 1998-11-19 1998-11-19 Procedure for producing upgraded newsprint pulp to SC / LWC quality SE513140C2 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
SE9803963A SE513140C2 (en) 1998-11-19 1998-11-19 Procedure for producing upgraded newsprint pulp to SC / LWC quality
CA002350988A CA2350988C (en) 1998-11-19 1999-11-19 Upgrading of tmp to an sc/lwc quality
BRPI9915497-8A BR9915497B1 (en) 1998-11-19 1999-11-19 process for producing press paper pulp improved for light weight coated super calendered quality.
NZ511810A NZ511810A (en) 1998-11-19 1999-11-19 Upgrading of TMP to an SC/LWC quality
AU19033/00A AU758521B2 (en) 1998-11-19 1999-11-19 Upgrading of TMP to an SC/LWC quality
AT99962627T ATE288515T1 (en) 1998-11-19 1999-11-19 UPGRADE OF TMP FIBER MATERIAL TO SC/LWC QUALITY
EP99962627A EP1159481B1 (en) 1998-11-19 1999-11-19 Upgrading of tmp to an sc/lwc quality
US09/856,134 US6361650B1 (en) 1998-11-19 1999-11-19 Process for upgrading of thermomechanical pulp to higher quality pulp
JP2000584135A JP2002530546A (en) 1998-11-19 1999-11-19 TMP quality improvement to SC / LWC quality
DE69923603T DE69923603T2 (en) 1998-11-19 1999-11-19 RECYCLING TMP FIBROUS TO SC / LWC QUALITY
PCT/SE1999/002128 WO2000031335A1 (en) 1998-11-19 1999-11-19 Upgrading of tmp to an sc/lwc quality
NO20012468A NO315429B1 (en) 1998-11-19 2001-05-18 Upgrade of TMP to SC / LWC quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9803963A SE513140C2 (en) 1998-11-19 1998-11-19 Procedure for producing upgraded newsprint pulp to SC / LWC quality

Publications (3)

Publication Number Publication Date
SE9803963D0 SE9803963D0 (en) 1998-11-19
SE9803963L true SE9803963L (en) 2000-05-20
SE513140C2 SE513140C2 (en) 2000-07-10

Family

ID=20413344

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9803963A SE513140C2 (en) 1998-11-19 1998-11-19 Procedure for producing upgraded newsprint pulp to SC / LWC quality

Country Status (12)

Country Link
US (1) US6361650B1 (en)
EP (1) EP1159481B1 (en)
JP (1) JP2002530546A (en)
AT (1) ATE288515T1 (en)
AU (1) AU758521B2 (en)
BR (1) BR9915497B1 (en)
CA (1) CA2350988C (en)
DE (1) DE69923603T2 (en)
NO (1) NO315429B1 (en)
NZ (1) NZ511810A (en)
SE (1) SE513140C2 (en)
WO (1) WO2000031335A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI113670B (en) * 1999-12-09 2004-05-31 Upm Kymmene Corp Process for making printing paper
FI113552B (en) * 1999-12-09 2004-05-14 Upm Kymmene Corp Process for the production of printing paper
DE10057682A1 (en) * 2000-11-21 2002-05-23 Voith Paper Patent Gmbh To smooth out the characteristics of suspended paper fibers, the suspension is separated into fractions at a wet sieve followed by wet grinding, with measurements at the overflow of the density of solids to set the grinding action
SE0202032D0 (en) * 2002-07-01 2002-07-01 Skogsind Tekn Foskningsinst Method for manufacturing mechanical or chemical-mechanical pulp and a device for manufacturing the same
US7381303B2 (en) * 2004-04-27 2008-06-03 Honeywell International Inc. System and method for controlling a thermo-mechanical wood pulp refiner
SE528348C2 (en) * 2004-09-21 2006-10-24 Noss Ab Method and apparatus for producing cellulose pulp
RU2281353C1 (en) * 2004-12-23 2006-08-10 Открытое акционерное общество "Центральный научно-исследовательский институт бумаги" (ОАО "ЦНИИБ") Method for manufacturing high-output fibrous semi-finished product
DE102007036379A1 (en) * 2007-07-31 2009-02-05 Voith Patent Gmbh Process for producing fines from pulp reject
FI125948B (en) * 2009-06-18 2016-04-29 Stora Enso Oyj Paper making method
FI121887B (en) * 2009-08-07 2011-05-31 Upm Kymmene Corp Mechanical pulp as well as system and method for manufacturing the mechanical pulp
FI122776B (en) * 2010-11-30 2012-06-29 Upm Kymmene Corp Procedures and systems for the manufacture of nanocellulose and nanocellulose
CA2824076A1 (en) 2012-08-21 2014-02-21 University Of New Brunswick System and method for reclaiming rejects in sulfite pulping
FI127682B (en) 2013-01-04 2018-12-14 Stora Enso Oyj A method of producing microfibrillated cellulose
EP2871282B1 (en) * 2013-11-12 2016-06-29 Teijin Aramid B.V. Two-step pulp manufacturing process including a water removal step
CN103790064B (en) * 2014-02-20 2017-03-01 安德里茨（中国）有限公司 Secondary Fiber Fine Screening System
US10041209B1 (en) 2015-08-21 2018-08-07 Pulmac Systems International, Inc. System for engineering fibers to improve paper production
US10941520B2 (en) 2015-08-21 2021-03-09 Pulmac Systems International, Inc. Fractionating and refining system for engineering fibers to improve paper production
US11214925B2 (en) 2015-08-21 2022-01-04 Pulmac Systems International, Inc. Method of preparing recycled cellulosic fibers to improve paper production
SE547210C2 (en) * 2023-08-09 2025-06-03 Stora Enso Oyj A method for manufacturing a molded cellulose fiber based product from an lc-and hc-refined pulp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529137A (en) * 1983-04-18 1985-07-16 Beloit Corporation Multiple disk refiner for low consistency refining of mechanical pulp
SE459924B (en) * 1988-01-22 1989-08-21 Sunds Defibrator SET FOR MANUFACTURE OF MECHANICAL MASS
KR100220557B1 (en) * 1995-06-12 1999-09-15 라이언 티모시 제이. Low-resident, high-temperature, high-speed chip refining

Also Published As

Publication number Publication date
CA2350988A1 (en) 2000-06-02
NZ511810A (en) 2002-11-26
JP2002530546A (en) 2002-09-17
WO2000031335A1 (en) 2000-06-02
DE69923603T2 (en) 2006-04-06
EP1159481A1 (en) 2001-12-05
BR9915497B1 (en) 2009-01-13
AU758521B2 (en) 2003-03-20
DE69923603D1 (en) 2005-03-10
ATE288515T1 (en) 2005-02-15
EP1159481B1 (en) 2005-02-02
AU1903300A (en) 2000-06-13
NO20012468D0 (en) 2001-05-18
NO315429B1 (en) 2003-09-01
BR9915497A (en) 2001-08-07
US6361650B1 (en) 2002-03-26
SE513140C2 (en) 2000-07-10
CA2350988C (en) 2007-06-05
SE9803963D0 (en) 1998-11-19
NO20012468L (en) 2001-07-18

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Legal Events

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NUG Patent has lapsed